from rest_framework import serializers
from goods.models import SPU, Brand, GoodsCategory


class SPUDetailSerializer(serializers.ModelSerializer):
    brand = serializers.StringRelatedField()
    brand_id = serializers.IntegerField()
    category1_id = serializers.IntegerField()
    category2_id = serializers.IntegerField()
    category3_id = serializers.IntegerField()
    class Meta:
        model = SPU
        fields = '__all__'
        # exclude = ['category1', 'category2', 'category3']
        extra_kwargs = {
            'category1': {'read_only': True},
            'category2': {'read_only': True},
            'category3': {'read_only': True},

        }


class BrandSimpleSerializer(serializers.ModelSerializer):
    class Meta:
        model = Brand
        fields = ['id', 'name']

class GoodsCategorySimpleSerializer(serializers.ModelSerializer):
    class Meta:
        model = GoodsCategory
        fields = ['id', 'name']